Matakuliah
Tahun
: D0164/ PERANCANGAN ELEMEN MESIN
: 2006
Pertemuan 4
Besaran Dalam Elemen Mesin
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SOAL- BAHAN DISKUSI
Kerjakan soal berikut dalam Kelompk atau Mandiri
1. A cast iron pipe with a 6 inch outer diameter and a 1/4 inch wall
thickness carries a load of 3200 pounds. Determine the compressive
stress in the pipe. (708 psi)
2. A construction crane has a 3/4 inch diameter cable. The allowable
working stress for the cable is 20,000 psi. Determine the maximum load
that the crane can lift. (8840 lb)
3. A short fir 4x4 has an allowable compressive stress of 1200 psi.
parallel to the grain. Determine the maximum load that the 4x4 can carry.
(19,200 lb)
4. A 24’ x 36’ house with full basement rests on 18" wide concrete
footings. The entire house weighs 65,000 pounds. Determine the bearing
stress on the soil beneath the footings. (~ 2.5 psi)
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